How can I print labels on a 3nstar PPT305BT printer using App Inventor?

[ABG]

There is an Android utility at https://3nstar.com/wp-content/uploads/2023/07/PPT305BT-Drivers.zip to configure that printer to ESC mode and set it up for BlueTooth.

Here's what we have on ESC Bluetooth printing:

FAQ Section: Printing

ESC/POS Simple Converter Extension - Daniel K. Experiences with the Jimdo.com ESC/POS Converter - @Bob_Holden [PAID] Thermal Printing extension (Bluetooth/Network) - mmnettime Printing in ZPL from text blocks - David_S, Juan_Antonio, Peter, ChrisWard Reference Material Epson ESC/POS(R) Reference Manual Defunct Image Print Extension - ILoveThunkable (missing)